Backscatter Random Access for Active Terminal Communication
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Solution Overview
Problem
Existing terminals in back scattering communication systems are limited to passive communication with the network device, necessitating a method for the terminal to actively initiate the communication process.
Innovation Solution
A random access method is introduced where the terminal actively communicates with the network device by transmitting a back scattered signal carrying a sequence and/or terminal identifier, using a back scattering communication mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal uses passive communication mode in back scattering communication system, then the terminal can communicate with the network device, but the terminal cannot actively initiate the communication process
Solution Approach 1:
The terminal performs preliminary actions by generating and transmitting a back scattered signal containing a first sequence and/or first terminal identifier before the network device responds. This preliminary action enables the terminal to actively initiate the communication process rather than waiting for network device initiation, resolving the contradiction between active communication capability and system complexity.
2Adaptability or versatility
If the terminal transmits back scattered signal with sequence and terminal identifier, then the terminal can actively initiate communication, but the signal transmission complexity increases
Solution Approach 1:
The back scattered signal serves multiple functions simultaneously: it carries the first sequence for random access identification, includes the first terminal identifier for terminal recognition, and enables active communication initiation. This multi-functionality approach increases adaptability while avoiding the need for separate signaling mechanisms, thereby managing complexity effectively.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables terminals to actively initiate communication processes, enhancing flexibility and efficiency in back scattering communication systems.
Implementation Method 1
a terminal receives a wireless signal from a network device, adds information to the wireless signal, and radiates it through the antenna. This process is called back scattering communication.
Data Source
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AI summary
Provided in the embodiments of the present application are random access methods and apparatuses, a terminal and a network device. A method comprises: a terminal receives a first signal sent by a network device, and, on the basis of the first signal, sends a second signal, the second signal being a backscatter signal of the first signal, the second signal carrying a first sequence and/or a first terminal identifier, the first terminal identifier being an identifier of the terminal, and the first sequence and/or the first terminal identifier being used for random access of the terminal.